Stephan Blatti is Associate Professor and Chair of Philosophy at the University of Memphis, where he is also an affiliate member of the Institute for Intelligent Systems. After receiving his BA from Ohio State University, he completed his B.Phil and D.Phil at the University of Oxford. He held positions at the University of North Carolina, Chapel Hill and Duke University before moving to Memphis. His work focuses primarily on personal identity and its relation to issues in ontology, philosophical psychology, philosophy of biology, and ethics. In addition to various articles, he is the co-editor (with Sandra Lapointe) of Ontology After Carnap (OUP 2016).
Paul Snowdon was educated at University College, Oxford, reading Philosophy, Politics, and Economics and graduating in 1968. He studied for the B.Phil at Oxford, between 1968 and 1970. After holding a lectureship in philosophy at the University of Reading, he became a Fellow and Lecturer in Philosophy at Exeter College, Oxford. In 2001 he was appointed Grote Professor of Mind and Logic at UCL, retiring in 2014. He has published one book on animalism and various articles on perception, the philosophy of mind and action, metaphysics, and the history of philosophy.